red blood cell
noun
variants
or less commonly red blood corpuscle
or red cell
or red corpuscle
: any of the hemoglobin-containing cells that carry oxygen to the tissues and in mammals are typically biconcave disks which lack a nucleus and cellular organelles and are formed from nucleated cells of the red bone marrow
Note: The number of red blood cells ranges from four to six million in each cubic millimeter of normal human blood. The red color of blood is due to the presence of hemoglobin within the red blood cells.
called also erythrocyte
compare white blood cellExamples of red blood cell in a Sentence
Recent Examples on the Web
According to the paper, the fluid consists of a mixture of red blood cells, electrolytes, vitamins, and a cold preservative solution.
—
Mack Degeurin, Popular Science, 17 July 2025
Strawberries are a leading source of vitamin B9 (folate), which helps the body form red blood cells and assists cell function.
—Mark Gurarie, Verywell Health, 15 July 2025
Testosterone levels that are truly low are most concerning because low testosterone can lower bone density (which increases the risk of fracture), reduce muscle mass, lower hemoglobin (red blood cells) levels and decrease libido, experts say.
—Shiv Sudhakar, NBC news, 14 July 2025
People with sickle cell disease produce misshapen red blood cells that can block blood flow to the rest of the body.
—Art De Roché, New York Times, 9 July 2025
See All Example Sentences for red blood cell
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Mack Degeurin, Popular Science, 17 July 2025
Strawberries are a leading source of vitamin B9 (folate), which helps the body form red blood cells and assists cell function.
—Mark Gurarie, Verywell Health, 15 July 2025
Testosterone levels that are truly low are most concerning because low testosterone can lower bone density (which increases the risk of fracture), reduce muscle mass, lower hemoglobin (red blood cells) levels and decrease libido, experts say.
—Shiv Sudhakar, NBC news, 14 July 2025
People with sickle cell disease produce misshapen red blood cells that can block blood flow to the rest of the body.
—Art De Roché, New York Times, 9 July 2025
See All Example Sentences for red blood cell
Cite this Entry
“Red blood cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/red%20blood%20cell. Accessed 25 Jul. 2025.
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